Merge pull request #98 from jhoekx/no-touch-file

Make copy module idempotent.
12 years ago · b4a07fea3b
parent ba7d0b8cec 38a33c54a6
commit b4a07fea3b
1 changed files with 2 additions and 3 deletions
--- a/library/copy
+++ b/library/copy
@ -54,11 +54,10 @@ changed = False
 if os.path.exists(dest):
    md5sum = os.popen("md5sum %s" % dest).read().split()[0]

-os.system("cp %s %s" % (src, dest))
-
-md5sum2 = os.popen("md5sum %s" % dest).read().split()[0]
+md5sum2 = os.popen("md5sum %s" % src).read().split()[0]

 if md5sum != md5sum2:
+    os.system("cp %s %s" % (src, dest))
    changed = True

 # mission accomplished